My new compressor...

[bronc3buster842001]

Finally got a compressor worth while... Just ***** its 3 phase, so have to figure that out... The price was right.... Lets just say I deserve(freebie) a you **** award...

 

[bronc3buster842001]

Whats my options on phase converters... Compressor has a 7.5hp motor on it... Im sure a single phase motor that big would be pricey around my area..

 

[theoldwizard1]

Watch Craigslist. You might be able to pick up a 5hp cheap.

I found a new Century 5hp compressor motor for about $250.

I'll bet you can get almost that much for your old 7.5 hp 3ph !

 

[kams1973]

First let me say you're an ******* for scoring that freebie! I think I'm going to be SICK! I kid, I kid, but you're still an as.....oh nevermind.

That looks like a SB705 pump from the pic. You could put a single phase 5hp motor on that unit and save the trouble of trying to build a phase converter powerfull enough to run it. If you are going to buy parts for the pump, be advised were some revisions. The earlier pumps had cast iron con rods and the newer ones had aluminum.

Great find and good luck getting her back in operation.

 

[skyboy2410]

bronc3buster this is an older unit be careful of what you do.

 

[bronc3buster842001]

So a true 5hp single phase motor should run it fine.... Think there was one on craigslist..

I also think I saw a guy had a phase converter pretty cheap..

 

[bronc3buster842001]

bronc3buster this is an older unit be careful of what you do.

What should I watch for

 

[bronc3buster842001]

Any chance this could be a 5hp motor..
http://stlouis.craigslist.org/tls/3551939772.html

Found the other compressor for sale and the guy had a phase converter for another 250 bucks

 

[Trey T]

Looks like a clone SB705 like mine.

KAMS1973: are the clone ones any good like the US made?

 

[kams1973]

I've rebuilt 705 clones, and I haven't had any complaints from those who purchased them. The castings on some are a bit rough, but that is simply cosmetic and can be ground and painted.

My opinion is....keep them full of oil and don't turn them any faster than the Saylor Beall specs, and they will outlive you.

 

[skyboy2410]

I agree with kams1973 make sure your rpms are matched with the Saylor Beall. Oil level as well.

 

[bronc3buster842001]

Few more pics.

These are the only numbers I have found on the pump itself..

 

[kams1973]

Definately looks to be a clone. If the fasteners are metric, it's an import. If they are standard, it's a Saylor-Beall.

 

[bsaint]

they dont make a 7.5 hp single phase to 3 phase converter (that Ive ever come across.)

 

[daviomaron]

I also think I saw a guy had a phase converter pretty cheap

 

[hickmlg09]

Sweet.

 

[firebox40dash5]

Check fleabay for motors. I was eyeballing some 5hp single phases for ~$450 last year, until I found an ooooooold GE (also on ebay) for $100 that'll probably outlive anything made in the last 20 years.

 

[bronc3buster842001]

Definately looks to be a clone. If the fasteners are metric, it's an import. If they are standard, it's a Saylor-Beall.

Ya the bolts are metric.....

 

[Trey T]

Good luck, just don't break your back with that 200lbs pump

 

[Hotz]

The tank (How is?) Very old ...

Hydrostatic testing is better to do.

 

[dirtydogintex]

The tank (How is?) Very old ...

Hydrostatic testing is better to do.

Wonder at what pressure the tank failed?

I don't understand the vid's narrator! *L*

 

[bronc3buster842001]

Does anyone have a diagram on how to hook up the unloader valves.... Looking at some other brands mines not right...

Mine runs from the unloader on the pump to the pressure switch.... The ones I;m seeing run from the pump to the check valve.... So which way is the right way....

 

[kams1973]

pump to check valve or switch to check valve

 

[bronc3buster842001]

pump to check valve or switch to check valve

So it can be hookup up either way.... Which way is better.... I was just gona run it from the pump to the check valve.... Then what do I do about the pressure switch to let it know when to kick on and off

 

[Hotz]

Wonder at what pressure the tank failed?

I don't understand the vid's narrator! *L*

I can not say, I just think better check technical standards for old cylinders, better find specialized companies to test.
Many accidents happen with air tanks.